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  • This record describes Remotely Operated Vehicle (ROV) imagery collected from within the Gascoyne Marine Park offshore northwestern Australia. The ROV SuBastian was used to conduct imagery transects on 20 dives across 16 stations, including 12 quantitative transects within the Cape Range Canyon. No quantitative transects were conducted in the Cloates Canyon due to delays caused by poor weather. SuBastian is equipped with a Sulis Subsea Z70 deep sea science camera, with 4K UHD 2160p optics and sensors for temperature, depth, conductivity and oxygen. The quantitative transects were run for 500 m upslope, ideally at a speed of 0.3 knots and an altitude of 2 m above the seafloor or rock walls. Still images were acquired every 5 seconds, with additional frames added manually as required. Still images from most transects were primarily annotated onboard using the RV Falkor’s private instance of SQUIDLE+, with some post-survey annotation conducted using the public instance of Squidle+ (http://squidle.org/). See post-survey report for full methodology. http://pid.geoscience.gov.au/dataset/ga/144204

  • This record describes Remotely Operated Vehicle (ROV) imagery collected from within the Gascoyne Marine Park offshore northwestern Australia. The ROV SuBastian was used to conduct imagery transects on 20 dives across 16 stations, including 12 quantitative transects within the Cape Range Canyon. No quantitative transects were conducted in the Cloates Canyon due to delays caused by poor weather. SuBastian is equipped with a Sulis Subsea Z70 deep sea science camera, with 4K UHD 2160p optics and sensors for temperature, depth, conductivity and oxygen. The quantitative transects were run for 500 m upslope, ideally at a speed of 0.3 knots and an altitude of 2 m above the seafloor or rock walls. Still images were acquired every 5 seconds, with additional frames added manually as required. Still images from most transects were primarily annotated onboard using the RV Falkor’s private instance of SQUIDLE+, with some post-survey annotation conducted using the public instance of Squidle+ (http://squidle.org/).

  • This record provides an overview of the scope and research output of NESP Marine Biodiversity Hub Project D8 - "Canyon mapping & biodiversity in Gascoyne Marine Park". For specific data outputs from this project, please see child records associated with this metadata. -------------------- Very little is known about the deep waters of Australia’s marine parks. Recent NESP-supported surveys have targeted eastern abyssal depths and Tasmanian seamounts (NESP Project D4), but there have been no similar efforts in Western Australia. To counter this information deficit, we plan to actively map and sample two significant and biologically unexplored submarine canyons (Cape Range and Cloates Canyon) in the habitat protection and multiple use zones of the Gascoyne Marine Park. Standard operating procedures for marine sampling (multibeam, survey design) will be followed, with other sampling platforms (e-DNA, ROV) informing future SOPs (NESP Project D2). Planned Outputs • ROV image library (to be archived with the Australian Marine Imagery Collection at NCI) • Derived bathymetric products (to be made available through Geoscience Australia website and linked to relevant portals, including the Marine Park Atlas and North-West Atlas) • Taxonomic identifications and associated metadata (to be made available online through Atlas of Living Australia (ALA) web portal) • Sanger genetic sequences and e-DNA sequences (to be lodged in databases such as NCBI’s Genbank, short read archive or DataDryad) • Multibeam data will be processed into bathymetric grids at Geoscience Australia and made available via the AusSeabed portal